Effect of T/B Ratio on Average Tumor Score
| T/B ratio | Tumor diameter | ||||||
|---|---|---|---|---|---|---|---|
| 9.4 mm | 7.0 mm | 4.6 mm | 2.6 mm | ||||
| 3:1 | 4.3/3.7 | 1.7/1.5 | 1.0/1.0 | 1.0/1.0 | |||
| 6:1 | 5.0/5.0 | 4.3/4.0 | 1.4/1.0 | 1.0/1.0 | |||
| 12:1 | 5.0/5.0 | 5.0/5.0 | 3.6/3.4 | 1.5/1.1 | |||
Tumor depth = 2 cm; breast thickness = 4.5 cm. Results are shown for CZT/Helix systems for each T/B ratio and average tumor diameter.